Home / 7,962.80-11,933.40-5,322.80

Finding the Fourth Proportional to 7,962.80, 11,933.40 and 5,322.80

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Solution

The fourth proportional to 7,962.80, 11,933.40 and 5,322.80 is: 7,976.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,962.80 : 11,933.40 = 5,322.80 : x
  2. Step 2: Convert to fraction form
    7,962.80/11,933.40 = 5,322.80/x
  3. Step 3: Cross multiply
    7,962.80x = 11,933.40 × 5,322.80
  4. Step 4: Simplify right side
    7,962.80x = 63,519,101.52
  5. Step 5: Solve for x
    x = 63,519,101.52/7,962.80
  6. Step 6: Final answer
    x = 7,976.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.